From the CW: "Kevin deciphers the tablet and figures out how to close the gates of Hell. He tells Sam and Dean that according to the tablet one person must face a series of three tests designed by God.

From the CW: "Sam asks a hunter named Martin to keep an eye on Benny without telling Dean. However, when Martin tells Sam there was a vampire kill and he thinks Benny is responsible, Dean defends his friend.

From the CW: "Castiel tells Sam and Dean that he's decided to become a hunter like them. Sam and Dean aren't sold on the idea but agree to investigate a case Cas found where a man's heart literally burst through his chest.

From the CW: "Sam and Dean investigate a murder and find Garth is already on the case. Dean is not happy to learn that Garth has assumed Bobby's duties, but Garth points out that both Sam and Dean have been missing for the last year and someone needed to do it.

From the CW: " Sam and Dean investigate a bizarre murder in a college town. Close on the tail of their suspect, they bust into an apartment to find two dead bodies and a laptop cued up to some disturbing video footage.

From the CW: "Kevin talks Sam and Dean into checking in on his mother. When they arrive, they see that Crowley has surrounded her with demons so they rescue her and take her along on their quest to find the tablet.